/**
 * Copyright 2020 Alibaba Group Holding Limited.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.alibaba.maxgraph.compiler.prepare.store;

import static com.google.common.base.Preconditions.checkNotNull;

import com.google.common.collect.Maps;

import java.util.Map;

public class MemoryStatementStore implements StatementStore {
    private Map<String, PrepareStoreEntity> prepareStoreEntityMap = Maps.newHashMap();

    @Override
    public void save(String prepareId, PrepareStoreEntity prepareStoreEntity) {
        prepareStoreEntityMap.put(prepareId, prepareStoreEntity);
    }

    @Override
    public void delete(String preparedId) {
        prepareStoreEntityMap.remove(preparedId);
    }

    @Override
    public PrepareStoreEntity get(String prepareId) {
        return checkNotNull(
                prepareStoreEntityMap.get(prepareId),
                "PREPARE statement=>" + prepareId + " not exist.");
    }

    @Override
    public boolean checkExist(String prepareId) {
        return prepareStoreEntityMap.containsKey(prepareId);
    }
}
